remove decrepreted quant models

official/cv/mobilenetv2_quant/Dockerfile

official/cv/mobilenetv2_quant/scripts/docker_start.sh

research/nlp/ternarybert/README.md

research/nlp/ternarybert/__init__.py

research/nlp/ternarybert/eval.py

research/nlp/ternarybert/mindspore_hub_conf.py

research/nlp/ternarybert/requirements.txt

research/nlp/ternarybert/scripts/run_eval.sh

research/nlp/ternarybert/scripts/run_train.sh

research/nlp/ternarybert/src/__init__.py

research/nlp/ternarybert/src/assessment_method.py

research/nlp/ternarybert/src/cell_wrapper.py

research/nlp/ternarybert/src/config.py

research/nlp/ternarybert/src/dataset.py

research/nlp/ternarybert/src/quant.py

research/nlp/ternarybert/src/tinybert_model.py

research/nlp/ternarybert/src/utils.py

research/nlp/ternarybert/train.py